1 files changed, 127 insertions, 0 deletions
diff --git a/os/hal/templates/hal_trng_lld.h b/os/hal/templates/hal_trng_lld.h
new file mode 100644
index 000000000..c110fbefa
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+++ b/os/hal/templates/hal_trng_lld.h
@@ -0,0 +1,127 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    hal_trng_lld.h
+ * @brief   PLATFORM TRNG subsystem low level driver header.
+ *
+ * @addtogroup TRNG
+ * @{
+ */
+
+#ifndef HAL_TRNG_LLD_H
+#define HAL_TRNG_LLD_H
+
+#if (HAL_USE_TRNG == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @name    PLATFORM configuration options
+ * @{
+ */
+/**
+ * @brief   TRNGD1 driver enable switch.
+ * @details If set to @p TRUE the support for TRNGD1 is included.
+ * @note    The default is @p FALSE.
+ */
+#if !defined(PLATFORM_TRNG_USE_TRNG1) || defined(__DOXYGEN__)
+#define PLATFORM_TRNG_USE_TRNG1               FALSE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   TRNG frequency type.
+ */
+typedef uint32_t trngfreq_t;
+
+/**
+ * @brief   TRNG counter type.
+ */
+typedef uint16_t trngcnt_t;
+
+/**
+ * @brief   Driver configuration structure.
+ * @note    It could be empty on some architectures.
+ */
+typedef struct {
+  /* End of the mandatory fields.*/
+  /**
+   * @brief   Dummy configuration, it is not needed..
+   */
+  uint32_t                   dummy;
+} TRNGConfig;
+
+/**
+ * @brief   Structure representing a TRNG driver.
+ */
+struct TRNGDriver {
+  /**
+   * @brief Driver state.
+   */
+  trngstate_t                state;
+  /**
+   * @brief Current configuration data.
+   */
+  const TRNGConfig           *config;
+#if defined(TRNG_DRIVER_EXT_FIELDS)
+  TRNG_DRIVER_EXT_FIELDS
+#endif
+  /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if (PLATFORM_TRNG_USE_TRNG1 == TRUE) && !defined(__DOXYGEN__)
+extern TRNGDriver TRNGD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void trng_lld_init(void);
+  void trng_lld_start(TRNGDriver *trngp);
+  void trng_lld_stop(TRNGDriver *trngp);
+  bool trng_lld_generate(TRNGDriver *trngp, size_t size, uint8_t *out);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_TRNG == TRUE */
+
+#endif /* HAL_TRNG_LLD_H */
+
+/** @} */